SSRS - Remove lines from Matrix report!

Dear friends,

I need to remove some empty lines from my matrix.. how can i do it?

I tried to use the visibility expression, but hide me the contents of the line, but not the space of the rows.... I need to remove them from the report... check the image on:

http://pedrocgd.blogspot.com/2007/07/ssrs-msdn-temp.html

In the visibilty expression I wrote:

http://pedrocgd.blogspot.com/2007/07/ssrs-msdn-temp.html

but I need to remove!! :-(

regards!!!

[776 byte] By [PedroCGD] at [2008-1-7]